A Clockwork Orange (1971)
When Spud and Renton are sitting alone together on a couch at a bar, the walls behind them have white words such as "voloko." These are the same words and style behind Alex and his three droogs in A Clockwork Orange.

Edgar & Simon's Flip Chart (2004)
(Video)
It can be read on the flip-chart that one characters favourite album is the "Trainspotting Soundtrack"

Long Way Round (2004)
(TV Mini-Series)
A cop pulls Ewan McGregor over to tell him that he really enjoyed Trainspotting

Match Point (2005)
near the end of the film, Ewen Bremner (as Inspector Dowd) refers to a heroin addict with multiple convictions. Bremner played a heroin addict with multiple convictions in trainspotting.

Sunshine on Leith (2013)
When Davy runs through the Edinburgh streets to catch Yvonne, he is nearly hit by a car and places his hands on the bonnet in an identical manner to Renton. Unlike the Trainspotting character, however, Davy simply apologises and moves on.

The Simpsons: The Regina Monologues (2003)
(TV Episode)
Bart and Lisa get high on British candy and run around the UK similar to Renton, Spud and Sick Boy at the beginning of Trainspotting. Also, Maggie crawls the ceiling and twists her head 360 degrees, spoofing Renton's reaction to going cold turkey.

Bob's Burgers: The Unnatural (2013)
(TV Episode)
Tina suffers caffeine withdrawal after Linda pawns the new espresso machine, and collapses to the sound of progressive trance, seeing a baby crawl and turn its head above her.